Question

(4k - 2) = k +6= 2k - 1
= k=7.
1.
ice, k =7.
EXERCISE 2A
Find the zeros of the following quadratic polynomials and verify the relationshi,
between the zeros and the coefficients:
1. x2 + 3x – 10
2. x2 – 2x – 8
3. x2 + 7x +12
4. 2x2 – X-6
[CBSE 2011
5. 4x2 - 4x – 3 [CBSE 2008C]
6. 5x2 – 4-8x
[CBSE 20
7. 2x2 - 11x +15
8. 213x2 – 5x + 13
[CBSE 2
9. 4x2 - 4x +1
10. 3x? – X – 4
11. 5x2 + 10x
12. 8x2 - 4​

Answer 1

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